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Petroleum ether
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Petroleum ether is the fraction consisting of and boiling in the range 35–60 °C, and commonly used as a laboratory . Despite the name, petroleum ether is not an .


Properties
Petroleum ether consists mainly of aliphatic hydrocarbons and is usually low in . It is commonly hydrodesulfurized and may be to reduce the amount of aromatic and other unsaturated hydrocarbons.


Standards
DIN 51630 has an initial boiling point above 25 °C, and its final boiling point up to 80 °C.


Safety
Fires should be fought with foam, , dry chemical or carbon tetrachloride.

The naphtha mixtures that are distilled at a lower boiling temperature have a higher volatility and, generally speaking, a higher degree of toxicity than the higher boiling fractions.

Inhalation overexposure causes primarily central nervous system (CNS) effects (headaches, dizziness, nausea, fatigue, and incoordination). In general, the toxicity is more pronounced with petroleum ethers containing higher concentrations of aromatic compounds. n- causes axonal damage in peripheral nerves.

Skin contact can cause allergic contact dermatitis.

Petroleum-derived distillates have not been shown to be carcinogenic in humans. Petroleum ether degrades rapidly in soil and water.

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